药剂协同添加煤泥水处理自动控制系统研究

Study on automatic control system of coal slime water treatment with synergistic addition of medicament

现有选煤厂煤泥水处理过程中的药剂添加系统只能完成单个添加环节的自动化控制,两个药剂添加系统互相独立运行,药剂消耗大、处理效率低。针对这一问题,设计了能够药剂协同添加的煤泥水处理系统,引入了协同模糊控制策略,以浓缩机溢流浓度和压滤机脱水效果反馈为输入量,设计了协同模糊专家控制系统,对药剂添加子系统的添加量进行补偿优化。实践表明,该系统实现了压滤机凝聚剂(聚合氯化铝PAC)和浓缩机絮凝剂(聚丙烯酰胺PAM)协同联合加药,有效降低了药剂消耗,提高了煤泥处理效率。

In the process of coal slurry water treatment in coal preparation plant,the agent adding system can only complete the automatic control of a single additive link.The two agent adding systems operate independently with large consumption of agents and low treatment efficiency.Aiming at this problem,a coal slime water treatment system capable of synergistic addition of agents was designed,and a collaborative fuzzy control strategy was introduced,a collaborative fuzzy expert control system was designed to compensate and optimize the amount of the subsystem of agent addition,with the concentration of overflow of the concentrator and the feedback of dewatering effect of the filter press as input.The practice showed that the system realized the combined addition of coagulant(polymerization aluminum chloride PAC)and flocculant(polyacrylamide PAM)of the filter press,which effectively reduced the consumption of the agent and improved the efficiency of coal slurry treatment.